/// <summary>
/// get last cached manifest, to support offline play
/// </summary>
/// <returns></returns>
public static bool TryGetCachedManifest(out AssetbundleBuildManifest manifest)
{
var path = Path.Combine(Application.persistentDataPath, CACHED_MANIFEST_FILE_NAME);
var cachedManifestJson = string.Empty;
if (File.Exists(path))
{
cachedManifestJson = File.ReadAllText(path);
}
return(AssetbundleBuildManifest.TryParse(cachedManifestJson, out manifest));
}
static IEnumerator CoGetManifest(BundleAsyncOperation <AssetbundleBuildManifest> result)
{
if (!Initialized)
{
Debug.LogError("Do Initialize first");
result.Done(BundleErrorCode.NotInitialized);
yield break;
}
#if UNITY_EDITOR
if (UseAssetDatabase)
{
result.Result = new AssetbundleBuildManifest();
result.Done(BundleErrorCode.Success);
yield break;
}
#endif
var manifestReq = UnityWebRequest.Get(Utility.CombinePath(RemoteURL, AssetbundleBuildSettings.ManifestFileName).Replace('\\', '/'));
yield return(manifestReq.SendWebRequest());
if (result.IsCancelled)
{
manifestReq.Dispose();
yield break;
}
if (manifestReq.isHttpError || manifestReq.isNetworkError)
{
result.Done(BundleErrorCode.NetworkError);
yield break;
}
var remoteManifestJson = manifestReq.downloadHandler.text;
manifestReq.Dispose();
if (!AssetbundleBuildManifest.TryParse(remoteManifestJson, out var remoteManifest))
{
result.Done(BundleErrorCode.ManifestParseError);
yield break;
}
result.Result = remoteManifest;
result.Done(BundleErrorCode.Success);
}
/// <summary>
/// get last cached manifest, to support offline play
/// </summary>
/// <returns></returns>
public static bool TryGetCachedManifest(out AssetbundleBuildManifest manifest)
{
return(AssetbundleBuildManifest.TryParse(PlayerPrefs.GetString("CachedManifest", string.Empty), out manifest));
}
static IEnumerator CoInitalizeLocalBundles(BundleAsyncOperation result, bool autoReloadBundle)
{
if (Initialized)
{
result.Done(BundleErrorCode.Success);
yield break;
}
AutoReloadBundle = autoReloadBundle;
if (LogMessages)
{
Debug.Log($"LocalURL : {LocalURL}");
}
foreach (var kv in s_AssetBundles)
{
kv.Value.Bundle.Unload(false);
}
s_SceneNames.Clear();
s_AssetBundles.Clear();
s_LocalBundles.Clear();
var manifestReq = UnityWebRequest.Get(Utility.CombinePath(LocalURL, AssetbundleBuildSettings.ManifestFileName));
yield return(manifestReq.SendWebRequest());
if (manifestReq.isHttpError || manifestReq.isNetworkError)
{
result.Done(BundleErrorCode.NetworkError);
yield break;
}
if (!AssetbundleBuildManifest.TryParse(manifestReq.downloadHandler.text, out var localManifest))
{
result.Done(BundleErrorCode.ManifestParseError);
yield break;
}
//cached version is recent one.
var cacheIsValid = AssetbundleBuildManifest.TryParse(PlayerPrefs.GetString("CachedManifest", string.Empty), out var cachedManifest) &&
cachedManifest.BuildTime > localManifest.BuildTime;
result.SetIndexLength(localManifest.BundleInfos.Count);
for (int i = 0; i < localManifest.BundleInfos.Count; i++)
{
result.SetCurrentIndex(i);
result.SetCachedBundle(true);
AssetbundleBuildManifest.BundleInfo bundleInfoToLoad;
AssetbundleBuildManifest.BundleInfo cachedBundleInfo = default;
var localBundleInfo = localManifest.BundleInfos[i];
bool useLocalBundle =
!cacheIsValid || //cache is not valid or...
!cachedManifest.TryGetBundleInfo(localBundleInfo.BundleName, out cachedBundleInfo) || //missing bundle or...
!Caching.IsVersionCached(cachedBundleInfo.AsCached); //is not cached no unusable.
bundleInfoToLoad = useLocalBundle ? localBundleInfo : cachedBundleInfo;
var loadPath = Utility.CombinePath(LocalURL, bundleInfoToLoad.BundleName);
var bundleReq = UnityWebRequestAssetBundle.GetAssetBundle(loadPath, bundleInfoToLoad.Hash);
var bundleOp = bundleReq.SendWebRequest();
while (!bundleOp.isDone)
{
result.SetProgress(bundleOp.progress);
yield return(null);
}
if (!bundleReq.isHttpError && !bundleReq.isNetworkError)
{
var loadedBundle = new LoadedBundle(bundleInfoToLoad, loadPath, DownloadHandlerAssetBundle.GetContent(bundleReq), useLocalBundle);
s_AssetBundles.Add(localBundleInfo.BundleName, loadedBundle);
CollectSceneNames(loadedBundle);
if (LogMessages)
{
Debug.Log($"Local bundle Loaded - Name : {localBundleInfo.BundleName}, Hash : {bundleInfoToLoad.Hash }");
}
}
else
{
result.Done(BundleErrorCode.NetworkError);
yield break;
}
bundleReq.Dispose();
s_LocalBundles.Add(localBundleInfo.BundleName, localBundleInfo.Hash);
}
RemoteURL = Utility.CombinePath(localManifest.RemoteURL, localManifest.BuildTarget);
#if UNITY_EDITOR
if (s_EditorBuildSettings.EmulateWithoutRemoteURL)
{
RemoteURL = "file://" + Utility.CombinePath(s_EditorBuildSettings.RemoteOutputPath, UnityEditor.EditorUserBuildSettings.activeBuildTarget.ToString());
}
#endif
Initialized = true;
if (LogMessages)
{
Debug.Log($"Initialize Success \nRemote URL : {RemoteURL} \nLocal URL : {LocalURL}");
}
result.Done(BundleErrorCode.Success);
}